Redcolourful

Bluetooth 4.1 Wristband Heart Rate Monitor Smart Watch with USB Plug Black

Specification:Bluetooth version: 4RAM:128MB ROM:128MBWaterproof grade: IP67, wash bath, shower, swimming etc.Product size (length x width x height): 42.9*17.3*9.8(MM)Product weight: 24Gcolor:blackNote: Due to the difference between different monitors,...